3: 32bit ISN codes is required to program a new key when ALL KEYS ARE LOST

Note: If you want to program BMW FEM key when all keys lost, you are required to enter 32-digit ISN code to access.

Job’s done with Lonsdor K518ISE!

2 How to use CGDI Prog BMW to OBD program FEM key

Go to BMW OBD Key Match

The current FEM/BDC needs to update the ECU program before performing key matching. Please ensure that the car battery has enough power, the programming process, please keep the equipment cable connection

Please remove the FEM/BDC and then use the CGDI Prog programmer to read and save data from the P5XXX EEPROM chip on the FEM/BDC computer board, then click on Next

– You have to pre-setup the FEM/BDC module before deleting/adding keys or resetting keys

– You’ll be told other tools need to be used first to program the FEM/BDC system, then setup FEM/BDC via VVDI2. It happens when you do FEM/BDC key learning, and you don’t have a working software version

– You’d better not close the VVDI2 interface when you pre-setup FEM/BDC

– You need do with 95128(FEM) or 95256(BDC) chip when pre-setup FEM/BDC

Note: there are two 8-pin chips; do not disassemble the wrong chip; better refer to the wiring diagram

– You must restore original EEPROM data, restore coding when pre-setup FEM/BDC. If you fail to restore coding or the remote cannot start or something wrong with the window (or other failures probably) after coding restore and FEM/BDC installation, please use other tools to do re-coding FEM/BDC

– Ask tech support obd2tool.com for help, if the replay sounds continuously after supplying power to the FEM/BDC. Usually, it needs programming.

4 Yanhua BMW FEM key programmer add a new key

There are 5 steps for you to have Yanhua BMW FEM/BDC programmer add/program a new key.